The ED revealed this to the Delhi high court on October 31 in response to a public interest litigation filed against the country’s two biggest online retail platforms for allegedly violating foreign direct investment norms.

Prior to the algorithm change in January, average cost per thousand impressions, also called cost per mile (CPM) — which refers to the price of 1,000 advertising impressions on a webpage — on Facebook was around Rs 150.

Prior to the algorithm change in January, average cost per thousand impressions, also called cost per mile (CPM) — which refers to the price of 1,000 advertising impressions on a webpage — on Facebook was around Rs 150.